发明公开
- 专利标题: Braking torque control apparatus
- 专利标题(中): 制动转矩控制装置
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申请号: EP00123731.2申请日: 2000-10-31
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公开(公告)号: EP1095834A3公开(公告)日: 2001-08-16
- 发明人: Yamamoto, Takayuki, c/o Toyota Jidosha K.K. , Murashima, Keiji, c/o Toyota Jidosha K.K. , Sawada, Naoki, c/o Denso Corporation
- 申请人: TOYOTA JIDOSHA KABUSHIKI KAISHA , Denso Corporation
- 申请人地址: 1, Toyota-cho, Toyota-shi Aichi-ken 471-8571 JP
- 专利权人: TOYOTA JIDOSHA KABUSHIKI KAISHA,Denso Corporation
- 当前专利权人: TOYOTA JIDOSHA KABUSHIKI KAISHA,Denso Corporation
- 当前专利权人地址: 1, Toyota-cho, Toyota-shi Aichi-ken 471-8571 JP
- 代理机构: Leson, Thomas Johannes Alois, Dipl.-Ing.
- 优先权: JP31101099 19991101; JP2000259842 20000829
- 主分类号: B60T8/32
- IPC分类号: B60T8/32 ; B60T7/04 ; B60T8/88 ; B60T13/74 ; B60T8/52
摘要:
A pair of shoes are expanded by driving an electric brake motor (30). Due to the friction engagement of the shoes with a drum inner peripheral surface, a braking force is applied to a wheel. An actual braking torque is detected by a strain sensor (314) that detects the load applied to an anchor pin. Through a feedback control using the actual braking torque, the electric motor (30) is driven and controlled so that the actual braking torque becomes equal to a target braking torque that is determined in accordance with the amount of operation of a brake pedal (40). When the actual braking torque is undetectable, for example, during a stop of a vehicle, the electric motor (30) is driven and controlled through an actuating force control using the current through the electric motor (30) that is detected by a motor current sensor (31). The braking torque control apparatus controls the actual braking torque to a magnitude corresponding to brake operation, regardless of the magnitude of the coefficient of friction between a friction engagement member and a brake rotor. Even when the braking torque is undetectable, the apparatus executes brake control in a good manner.
公开/授权文献
- EP1095834B1 Braking torque control apparatus 公开/授权日:2008-09-10
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